The Antica Strada Regina, which ran along the western shore of the lake, was drawn in Roman times and was one of the most important transit routes, because it allowed a rapid connection between the Po Valley and the transalpine region.
The route of this Roman royal road from the Sanctuary of Madonna della Pace, the historic centre of Nobiallo, climbs up the Sasso Rancio to reach San Siro (formerly Santa Maria Rezzonico).
